CN112127718A - Method for detecting running state of sliding door lock of platform door system - Google Patents
Method for detecting running state of sliding door lock of platform door system Download PDFInfo
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- CN112127718A CN112127718A CN202011019717.2A CN202011019717A CN112127718A CN 112127718 A CN112127718 A CN 112127718A CN 202011019717 A CN202011019717 A CN 202011019717A CN 112127718 A CN112127718 A CN 112127718A
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B65/00—Locks or fastenings for special use
- E05B65/08—Locks or fastenings for special use for sliding wings
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B43/00—Time locks
- E05B43/005—Timer devices controlling electrically operated locks
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B47/00—Operating or controlling locks or other fastening devices by electric or magnetic means
- E05B47/0001—Operating or controlling locks or other fastening devices by electric or magnetic means with electric actuators; Constructional features thereof
- E05B47/0002—Operating or controlling locks or other fastening devices by electric or magnetic means with electric actuators; Constructional features thereof with electromagnets
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B47/00—Operating or controlling locks or other fastening devices by electric or magnetic means
- E05B2047/0048—Circuits, feeding, monitoring
- E05B2047/0067—Monitoring
- E05B2047/0068—Door closed
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B47/00—Operating or controlling locks or other fastening devices by electric or magnetic means
- E05B2047/0048—Circuits, feeding, monitoring
- E05B2047/0067—Monitoring
- E05B2047/0069—Monitoring bolt position
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- Electromagnetism (AREA)
- Platform Screen Doors And Railroad Systems (AREA)
Abstract
The invention belongs to the technical field of operation and maintenance monitoring, and particularly relates to a method for detecting the operation state of a sliding door lock of a platform door system. The detection method comprises the steps of calculating the time difference between the time when the sliding door lock sends an electromagnet attraction signal and the time when the sliding door lock receives a lock in-place opening and closing signal, and the time between the time when the sliding door lock receives the lock in-place opening and closing signal and the time when the sliding door lock receives the lock in-place opening and closing signal, and detecting the running state of the sliding door lock in the platform door system by a time calculation method.
Description
Technical Field
The invention belongs to the technical field of operation and maintenance monitoring, and particularly relates to a method for detecting the operation state of a sliding door lock of a platform door system.
Background
The sliding door lock device of the platform door system is arranged in the top box, is positioned in the center above the position of the sliding door and comprises a mechanical part and an electronic part; the mechanical part ensures that the sliding door can be locked after being operated to the locking position, and the electronic part ensures that the state of the sliding door can be fed back to the DCU of each door unit through the travel switch. The sliding door lock device commonly used in the platform door system at present adopts a detection mode of closing an in-place switch and locking the in-place switch to detect the state of the sliding door.
Through experience of field maintenance of platform door equipment for many years, the sliding door has high fault caused by mechanical problems of the door lock, wherein the equipment fault proportion of partially adopting the electromagnet to unlock the mechanical locking device door lock reaches 10% of the fault of the platform door system, so that the sliding door lock is taken as the key point of maintenance when the platform door system is maintained every time, and the fault occurrence probability can be greatly reduced through the maintenance.
In the prior art, the platform door system only records four records related to the door opening and closing time, namely the door opening command sending time of the sliding door, the door opening and positioning time of the sliding door, the door closing command sending time of the sliding door and the door closing and positioning time of the sliding door, and the recording mode has the following problems:
1. the precision of the related recording is second, and the recording precision is too low.
2. The sliding door is often influenced by external factors in the door opening and closing process, such as tunnel wind pressure and clamping of people, so that the door opening and closing time of the sliding door at each time has certain difference, and the data accuracy is poor.
3. The software-related time is recorded only, and no data processing is performed.
Moreover, the skill level of each maintenance person is different, and the difference of the maintenance quality is large; the field lacks the effective and accurate technical means for detecting the running state of the sliding door lock, and the running state and the maintenance quality of the equipment cannot be detected, so that the daily workload of maintenance personnel is large, and the running state of the equipment cannot be expected. In view of the above, it is very necessary to provide a method for detecting the operation state of a sliding door lock of a platform door system.
Disclosure of Invention
The invention provides a method for detecting the running state of a sliding door lock of a platform door system, aiming at the defects and problems that no technical means for detecting the running state of the sliding door lock exists at present.
The technical scheme adopted by the invention for solving the technical problems is as follows: a method for detecting the running state of a sliding door lock of a platform door system comprises the following steps:
firstly, recording the time of sending electromagnet attraction signals by all the sliding door lock mechanisms of the same type of the whole wire networkT aTime of receiving lock-in-place switch action signalT bCalculating each sliding door lockTime of unlockingΔT 1，ΔT 1= T b- T a(ii) a Recording the time when the door lock mechanism of each sliding door of the same type of the whole network receives the action signal of the closing position switchT c Time of receiving lock-in-place switch action signalT dCalculating the locking time of each sliding door lockΔT 2，ΔT 2= T d- T c；
Secondly, respectively dividing the unlocking time and the locking time of the running state of each sliding door lock mechanism into a normal value, an early warning value and a fault value, and respectively establishing an unlocking time fault threshold curve and a locking time fault threshold curve;
then, the time of the sliding door lock mechanism sending out an electromagnet attraction signal is recorded through a door control unit or a door head state detection modulet aTime of receiving lock-in-place switch action signalt bCalculating the unlocking time of the door lock of the sliding doorΔt 1，Δt 1= t b -t a(ii) a Recording the time when the sliding door lock mechanism receives the closing position switch actuating signalt cTime of receiving lock-in-place switch action signalt dCalculating the locking time of the sliding door lockΔt 2，Δt 2= t d- t cUploading the data to an intelligent operation and maintenance system;
finally, the intelligent operation and maintenance system unlocks the time delta t1Comparing with the unlocking time fault early warning threshold value curve, and comparing the locking time delta t2And comparing the locking time fault early warning threshold curve with the locking time fault early warning threshold curve, and judging the unlocking operation state and the locking operation state of the sliding door lock.
The method for detecting the operation state of the sliding door lock of the platform door system comprises the following steps of: when the door control unit receives a door opening instruction, an electromagnet suction instruction is sent out, the door control unit starts timing, the electromagnet controls the lock to unlock after receiving the suction instruction, the lock in place detects the switch action after unlocking is completed, and when the door control unit receives the lock in place switch action state, the door control unit finishes timing, stores the timing duration and calculates the unlocking time.
The method for detecting the running state of the sliding door lock of the platform door system comprises the following steps of: when the door control unit receives a door closing instruction, the sliding door executes a door closing action, the closing-in-place switch acts first, the door control unit starts timing, after the door is closed in place, the brake lock is locked, when the locking is completed, the locking-in-place switch acts, the door control unit finishes timing, and the locking time is calculated.
The method for detecting the running state of the sliding door lock of the platform door system obtains the unlocking time through the door head state detection module and comprises the following steps: the door control unit sends an electromagnet actuation instruction when receiving a door opening instruction, the door head state detection module starts timing when detecting the state, the electromagnet controls the brake lock to unlock after receiving the actuation instruction, the lock in place detection switch acts after unlocking is completed, and the detection module finishes timing and calculates the unlocking time when detecting the lock in place switch acting state.
The method for detecting the running state of the sliding door lock of the platform door system obtains the locking time through the door head state detection module and comprises the following steps: when the door control unit receives a door closing instruction, the sliding door executes a door closing action, the door position detection switch acts first, the detection module starts timing after detecting the state, the lock locks after the door is closed in place, the lock in place switches to act when the locking is completed, the detection module finishes timing after detecting the state, and the locking time is calculated.
The invention has the beneficial effects that:
1. the three groups of signals read by the DCU or the door head state detection module are direct signals for detecting the action of the brake lock, and the running state of the brake lock can be intuitively reflected; when the unlocking time is calculated, the relevant signals are irrelevant to the action of the door body, and are completely not influenced by external factors; when the locking time is calculated, the detection switch in place action signal comes from the tail end of the movement of the door body, the influence of external factors on data is extremely small, the accuracy of the data can be ensured to the maximum extent, and the running state of the sliding door lock can be reflected more truly.
2. The unlocking time and the locking time of the sliding door lock are uploaded by the DCU or the door head state detection module according to the calculated data, and the data volume is relatively small.
3. The recording time is the time difference of key actions of the door lock, the time difference can be accurate to millisecond level, and the time precision is higher.
4. For the platform door equipment with the sliding door closing in place and the locking in place synchronously acting through the switch, a door position detection switch or a sensor is additionally arranged at the running tail end of the door body and used for detecting the position of the door body.
5. The intelligent operation and maintenance system is mainly used as a sub item of the platform door intelligent operation and maintenance system, and the detection function is realized through the hardware of the intelligent operation and maintenance system; the industrial personal computer for uploading data to the platform door can be independently arranged and accessed into the existing platform door system.
6. The intelligent operation and maintenance server performs storage and data analysis by using a big data technology through the acquired brake lock unlocking time and locking time, performs data characteristic value extraction by using a data fusion algorithm, and performs the establishment, optimization and intelligent judgment of a diagnosis rule, an evaluation rule, a prediction rule and a decision rule by combining an artificial intelligent deep learning algorithm and historical data so as to monitor, analyze, evaluate and perform fault early warning on the operation state of the equipment. Therefore, the prevention maintenance activities of the platform door key equipment based on the equipment technical state are realized, the maintenance cost is reduced, and the equipment faults are avoided.
7. The platform door system adopts daily inspection at the present stage, and when the data of the invention is uploaded to an industrial personal computer, inspection personnel can check the data of the industrial personal computer every day, thereby realizing the detection of the running state of the equipment.
8. When the system detects that the unlocking time and the locking time of the sliding door lock exceed the threshold values, the system can automatically send the state to maintenance personnel, and the maintenance personnel can maintain the components after the subway is shut down, so that the fault prejudgment is realized, and the equipment fault rate is reduced.
9. During equipment maintenance, a maintainer only needs to arrange a technical backbone to adjust equipment with a reduced running state according to the running state data of the equipment, the equipment with a good running state can directly skip the maintenance step, the workload of the staff can be reduced, and the problem of improper or excessive maintenance is avoided.
10. After the maintenance is accomplished, carry out the test of opening and shutting through PSL, the system can compare the data before and after the maintenance, can carry out the secondary adjustment to equipment running state, improves the maintenance quality.
Drawings
FIG. 1 is a graph of the failure threshold of the sliding door lock operating condition of the present invention.
FIG. 2 is a schematic flow chart of the door control unit acquiring the unlock time according to the present invention.
FIG. 3 is a schematic flow chart of a gate control unit for obtaining lock-up time according to the present invention.
Fig. 4 is a schematic flow chart of the door head state monitoring module for acquiring the unlocking time according to the present invention.
FIG. 5 is a schematic view of a process for acquiring a locking time by the door head status monitoring module according to the present invention.
Detailed Description
Aiming at the problems and defects that the monitoring workload of the sliding door lock is large at present, and the early warning effect cannot be realized due to the low accuracy of the existing monitoring method, the invention provides the method for detecting the running state of the sliding door lock of the platform door system, which can accurately detect and early warn, so as to realize the maintenance and replacement of the sliding door lock in advance and avoid the influence of the damage of the door lock on the normal running of a train. The invention is further illustrated with reference to the following figures and examples.
Example 1: the embodiment provides a method for detecting the operation state of a sliding door lock of a platform door system, which detects the operation state of the sliding door lock in the platform door system by calculating time, and comprises the following steps:
when the door is opened, the time of each sliding door lock mechanism of the same type of the whole line network sending an electromagnet actuation signal is recordedT aTime of receiving lock-in-place switch action signalT bCalculate each slipUnlocking time of door lockΔT 1，ΔT 1= T b- T a(ii) a The unlocking time of the sliding door lock is divided into a normal state 1, a normal state 2, an early warning value 1, an early warning value 2 and a fault value according to the time, an unlocking time fault threshold value curve is established by taking the time as an abscissa and the operating state as an ordinate, and the curve state is shown in fig. 1.
When the door is closed, the time of the door lock mechanism closing the position switch action signal of each sliding door of the same type of the whole line network is recordedT c Time of receiving lock-in-place switch action signalT dCalculating the locking time of each sliding door lockΔT 2，ΔT 2= T d- T c(ii) a The locking time of the running state of the sliding door lock is divided into a normal state 1, a normal state 2, an early warning value 1, an early warning value 2 and a fault value according to the time, and a locking time fault threshold value curve is established by taking the time as an abscissa and the running state as an ordinate.
For the door control unit to control the sliding door to open the door, the whole flow is as shown in fig. 2, when the door control unit DCU receives a door opening instruction, an electromagnet suction instruction is sent out, and the DCU starts timing; the electromagnet controls the brake lock to unlock after receiving the actuation instruction, the lock in place detection switch acts after unlocking is completed, when the DCU receives the lock in place switch acting state, the DCU finishes timing, and stores the timing duration time, so as to complete the record of the unlocking time, and the sliding door executes the door opening action. When the sliding door is opened in place, the DCU uploads the opening time in place and the unlocking time delta t through the CAN bus1。
For closing the door, as shown in fig. 3, when the DCU receives a door closing command, the sliding door performs a door closing action, the switch in place closes first, and the DCU starts timing; after the door is closed in place, the mechanical part of the brake lock is locked under the triggering of external acting force, when the locking is finished, the switch in place is locked to act, the DCU finishes timing, and the recording of the locking time is finished; the DCU uploads the door closing in place and the locking time delta t through the CAN bus2。
Intelligent operation and maintenance host computer CAN bus data interface by reading platform door systemAfter the unlocking time and the locking time of the sliding door are received, the data are uploaded to an intelligent operation and maintenance server, and the server unlocks the unlocking time delta t1Locking time Deltat2And respectively comparing the time difference with an unlocking time fault threshold curve and a locking time fault threshold curve, analyzing the running state of the brake lock, and executing related operations when the following states are detected.
When the intelligent operation and maintenance platform detects that the running state of a certain brake lock reaches the early warning value of 2, the fault early warning signal is sent to the maintenance terminal, maintenance personnel can maintain the component after shutdown, the component state is adjusted to be 2 or above the normal state, the hidden fault trouble is solved in advance, the maintenance cost is reduced, and the influence on the running of the train caused by the occurrence of equipment faults is prevented.
When the intelligent operation and maintenance platform detects that the operation state of the field device reaches the early warning value 1 through a plurality of components, the station is indicated to need maintenance, and the components with the operation states lower than the early warning value 1 are adjusted to be in a normal state 2 or above.
After the part is maintained through the adjustment, when the running state still can't reach normal condition 2, just need change this part, can realize the state maintenance of platform door system through this kind of mode, change the current equipment and repair the problem that causes excessively to repair or overhaul not in place regularly, make equipment maintenance more scientific, very big reduction field personnel work load.
This function can be applied to platform door system maintenance effect evaluation, carries out the test of opening and shutting through PSL after the maintenance is accomplished, and the system can compare data around the maintenance, can carry out the secondary adjustment to equipment running state, and all equipment need resume running state 2 and above, improve the maintenance quality.
Compared with the existing detection method, the detection method uses the time difference of 3 groups of direct signals for detecting the action of the brake lock, namely an electromagnet suction signal, a lock-in-place switch action signal and a close-in-place switch action signal, as a data acquisition point, the signals are irrelevant to whether a door body acts or not, are not influenced by external factors such as tunnel wind pressure and clamping of people, and can intuitively reflect the running state of the brake lock; and the time difference can be accurate to millisecond level, and the time precision is higher. When the locking time is calculated, the detection switch in place action signal comes from the tail end of the movement of the door body, the influence of external factors on data is extremely small, and the accuracy of the data can be ensured to the maximum extent.
And as the subentry of platform door intelligence fortune dimension system, realize the detection function through the hardware of intelligence fortune dimension system, also can set up the industrial computer that the hardware uploaded the data to the platform door alone, insert current platform door system, can look over the industrial computer data by the personnel of patrolling and examining every day, realize the detection of equipment running state. During equipment maintenance, maintenance personnel only need according to equipment running state data, arrange technical backbone to adjust the equipment that the running state descends can, the equipment that the running state is good can directly skip this maintenance step, can reduce personnel's work load, avoids appearing the problem of maintenance not in place or excessive maintenance simultaneously.
Example 2: the same parts of this embodiment as those of embodiment 1 are not described again, but the difference is that when the detection requirements cannot be met by closing the position switch and locking the position switch, the action time of closing the position switch and locking the position switch of the electromagnet is detected by the door head state detection module.
As shown in fig. 4, when receiving a door opening instruction, the DCU sends an electromagnet attracting instruction, and when detecting that the state is detected, the detection module starts timing; the electromagnet receives the attraction instruction and then controls the brake lock to unlock, after unlocking is completed, the lock in place detection switch acts, when the detection module detects the lock in place switch acting state, the detection module finishes timing, records of unlocking time are completed, and data are uploaded to the intelligent operation and maintenance host.
As shown in fig. 5, when the DCU receives a door closing command, the sliding door performs a door closing operation, the door position detection switch operates first, and the detection module starts timing after detecting the state. After the door is closed in place, the mechanical part of the brake lock is locked under the triggering of external acting force, when the locking is completed, the lock in place switch acts, the detection module finishes timing after detecting the state, records of unlocking time are completed, and data are uploaded to the intelligent operation and maintenance host.
The intelligent operation and maintenance host uploads the data to the intelligent operation and maintenance server after receiving the unlocking time and the locking time of the sliding door sent by the detection module, the server analyzes the operation state of the brake lock through the two times, and when the brake lock is not operated on site, the server sends the data to the maintenance personnel maintenance terminal to inform the maintenance personnel to adjust or replace the brake lock.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and scope of the present invention are intended to be covered thereby.
Claims (5)
1. A method for detecting the running state of a sliding door lock of a platform door system is characterized in that: the method comprises the following steps:
firstly, recording the time of sending electromagnet attraction signals by all the sliding door lock mechanisms of the same type of the whole wire networkT aTime of receiving lock-in-place switch action signalT bCalculating the unlocking time of each sliding door lockΔT 1，ΔT 1= T b- T a(ii) a Recording the time when the door lock mechanism of each sliding door of the same type of the whole network receives the action signal of the closing position switchT c Time of receiving lock-in-place switch action signalT dCalculating the locking time of each sliding door lockΔT 2，ΔT 2= T d- T c；
Secondly, respectively dividing the unlocking time and the locking time of the running state of each sliding door lock mechanism into a normal value, an early warning value and a fault value, and respectively establishing an unlocking time fault threshold curve and a locking time fault threshold curve;
then, the time of the sliding door lock mechanism sending out an electromagnet attraction signal is recorded through a door control unit or a door head state detection modulet aTime of receiving lock-in-place switch action signalt bCalculating the unlocking time of the door lock of the sliding doorΔt 1，Δt 1= t b -t a(ii) a Recording the time when the sliding door lock mechanism receives the closing position switch actuating signalt cTime of receiving lock-in-place switch action signalt dCalculating the locking time of the sliding door lockΔt 2，Δt 2= t d- t cUploading the data to an intelligent operation and maintenance system;
finally, the intelligent operation and maintenance system unlocks the time delta t1Comparing with the unlocking time fault early warning threshold value curve, and comparing the locking time delta t2And comparing the locking time fault early warning threshold curve with the locking time fault early warning threshold curve, and judging the unlocking operation state and the locking operation state of the sliding door lock.
2. A method of detecting the operational condition of a slide door lock of a platform door system according to claim 1, wherein: the step of acquiring the unlocking time through the door control unit comprises the following steps: when the door control unit receives a door opening instruction, an electromagnet suction instruction is sent out, the door control unit starts timing, the electromagnet controls the lock to unlock after receiving the suction instruction, the lock in place detects the switch action after unlocking is completed, and when the door control unit receives the lock in place switch action state, the door control unit finishes timing, stores the timing duration and calculates the unlocking time.
3. A method of detecting the operational condition of a slide door lock of a platform door system according to claim 1, wherein: the acquisition of the lock-up time by the gate control unit comprises the following steps: when the door control unit receives a door closing instruction, the sliding door executes a door closing action, the closing-in-place switch acts first, the door control unit starts timing, after the door is closed in place, the brake lock is locked, when the locking is completed, the locking-in-place switch acts, the door control unit finishes timing, and the locking time is calculated.
4. A method of detecting the operational condition of a slide door lock of a platform door system according to claim 1, wherein: the method for acquiring the unlocking time through the door head state detection module comprises the following steps: the door control unit sends an electromagnet actuation instruction when receiving a door opening instruction, the door head state detection module starts timing when detecting the state, the electromagnet controls the brake lock to unlock after receiving the actuation instruction, the lock in place detection switch acts after unlocking is completed, and the detection module finishes timing and calculates the unlocking time when detecting the lock in place switch acting state.
5. A method of detecting the operational condition of a slide door lock of a platform door system according to claim 1, wherein: the method for acquiring the locking time through the door head state detection module comprises the following steps: when the door control unit receives a door closing instruction, the sliding door executes a door closing action, the door position detection switch acts first, the detection module starts timing after detecting the state, the lock locks after the door is closed in place, the lock in place switches to act when the locking is completed, the detection module finishes timing after detecting the state, and the locking time is calculated.
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